I don't think that's accurate, the PLAN had 8 Type 055s built in 4 years, and another 8 on the way in the same timespan. The USN in WW2 had over 100 cruisers built.
If we're talking about potential though, Chinese shipbuilding capacity dwarfs the US, and in a hypothetical war scenario (that somehow doesn't turn nuclear) with full wartime production the gap widens more. However I expect that given their expense and the fact that they'll be priority targets that the PLAN will likely use their submarines and Type 054A/B and Type 052Ds to do the heavy lifting, since a loss of a frigate or destroyer isn't as crippling and they're much faster and cheaper to build. It'll be like that image where the US navy has a handful of decades old arleigh burkes and trump battleships vs the latest batch of PLAN destroyers, laid down 2 months ago, commissioned last week, with another 4 dozen on the way.
common Diddy Tensei L